Can not deploy war file using Struts2 into Geronimo 2.2.1 - deployment

Question

I try to deploy struts2-showcase.war in Struts2-2.3.1-all.zip into Geronimo 2.2.1.
Geronimo responded the below errors:
011-12-30 15:31:53,294 WARN [TomcatModuleBuilder] Web application . does not contain a WEB-INF/geronimo-web.xml deployment plan. This may or may not be a problem, depending on whether you have things like resource references that need to be resolved. You can also give the deployer a separate deployment plan file on the command line.
Deployer operation failed: org/apache/struts/taglib/html/FormTag
java.lang.NoClassDefFoundError: org/apache/struts/taglib/html/FormTag
at java.lang.ClassLoader.defineClass1(Native Method)
2011-12-30 15:31:56,608 ERROR [Deployer] Deployment failed due to
java.lang.NoClassDefFoundError: org/apache/struts/taglib/html/FormTag
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at org.apache.geronimo.kernel.classloader.JarFileClassLoader.access$200(JarFileClassLoader.java:52)
at org.apache.geronimo.kernel.classloader.JarFileClassLoader$6.run(JarFileClassLoader.java:302)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.geronimo.kernel.classloader.JarFileClassLoader.findClass(JarFileClassLoader.java:254)
at org.apache.geronimo.kernel.config.MultiParentClassLoader.loadOptimizedClass(MultiParentClassLoader.java:401)
at org.apache.geronimo.kernel.config.MultiParentClassLoader.loadClass(MultiParentClassLoader.java:257)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.apache.geronimo.jasper.deployment.JspModuleBuilderExtension.parseTldFile(JspModuleBuilderExtension.java:472)
at org.apache.geronimo.jasper.deployment.JspModuleBuilderExtension.getListenerClasses(JspModuleBuilderExtension.java:433)
at org.apache.geronimo.jasper.deployment.JspModuleBuilderExtension.createJspClassFinder(JspModuleBuilderExtension.java:189)
at org.apache.geronimo.jasper.deployment.JspModuleBuilderExtension.addGBeans(JspModuleBuilderExtension.java:158)
at org.apache.geronimo.tomcat.deployment.TomcatModuleBuilder.addGBeans(TomcatModuleBuilder.java:513)
at org.apache.geronimo.j2ee.deployment.SwitchingModuleBuilder.addGBeans(SwitchingModuleBuilder.java:165)
at org.apache.geronimo.j2ee.deployment.EARConfigBuilder.buildConfiguration(EARConfigBuilder.java:652)
at org.apache.geronimo.deployment.Deployer.deploy(Deployer.java:257)
at org.apache.geronimo.deployment.Deployer.deploy(Deployer.java:136)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.geronimo.gbean.runtime.ReflectionMethodInvoker.invoke(ReflectionMethodInvoker.java:34)
at org.apache.geronimo.gbean.runtime.GBeanOperation.invoke(GBeanOperation.java:130)
at org.apache.geronimo.gbean.runtime.GBeanInstance.invoke(GBeanInstance.java:851)
at org.apache.geronimo.kernel.basic.BasicKernel.invoke(BasicKernel.java:237)
at org.apache.geronimo.deployment.plugin.local.AbstractDeployCommand.doDeploy(AbstractDeployCommand.java:116)
at org.apache.geronimo.deployment.plugin.local.DistributeCommand.run(DistributeCommand.java:61)
at java.lang.Thread.run(Unknown Source)
Does anybody tell me what's wrong with Geronimo ?
I know Geronimo told me it can not find the class:
org/apache/struts/taglib/html/FormTag object.
But, the object is belongs to Struts1, and my war file use Struts2.
I checked struts2-showcase.war and confirmed that struts2-showcase.war never uses the above object.
Thanks anyway.

Answer 1

never worked with Geronimo but a quick look at the log saying that geronimo-web.xml in not there inside WEB-INF folder.
Check this thread as the person has same issue
How to deploy in Geronimo
Have you tried running web-app? Is It working or not, i am asking these question based on the content of stack trace you have posted